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UNITE TATES ATENT OFFICE.

GEORGE C. PYLE, OF INDIANAPOLIS, INDIANA, ASSIGNOR TO THE NATIONAL ELECTRIC HEAD LIGHT COMPANY, OF SAME PLACE.

LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 450,424, dated April 14, 1891.

Application filed January 21, 1890. Serial No. 337,604. (No model.)

To all whom it ntay concern.- reservoir may be filled with oil or other lubri- Be it known that I, GEORGE C. PYLE,aciticant; or access may be had thereto for the zen of the. United States, residing at Indian-j purpose of cleaning it. Leading out from the apolis, in the county of Marion and State of bottom of said reservoir to the outside is a Indiana, have invented certain new and usepipe or tube containing a cock (1 by which ful Improvements in Lubricators, of which the oil or other lubricant may be drawn off the following-is a specification. when desired. and by which the water or My said invention relates to that class of other fluid which during the operation of my devices known" 'as displacement lubricatinvention fills the lower portion of the reser- 1:0 ors; and it consists in so constructing and voir may be discharged therefrom. 6o

arranging such a lubricator that it will form The pipe or conduit E extends from near a convenient and economical device conthe top of the tank or reservoirdown through nected with or embodied in the engine with its bottom (in the construction shown) to a which it is used, as will be hereinafter more point near the part to be lubricated, which in 15 particularly described and claimed. the structure shown is the crank or wrist pin.

Referring to the accompanying drawings, Said conduit is shown as a plain pipe open at which are made a part hereof, and on which both ends, and is preferably located in the similar letters of reference indicate similar central portion of the tank or reservoir. It parts, Figure 1 is a central Vertical sectional is shown as being straight; but it may ob- 2 view of a multiplecylinder engine embodyviously be bent when it is necessary to carry ing my said invention on the dotted line 1 1 the lubricant to a point different from that in Fig. 2, and Fig. 2 a similar view on the immediately below the reservoir. dotted line 2 2 in Fig. 1. The operation of my said invention is as In said drawings, the portions marked A follows: The tank or reservoir D is filled with 2 5 represent the casing of the engine; B, the cyloil or other suitable lubricant to the level of inder; C, the crank or wrist pin; D, the resthe top of the pipe or conduit E. Provision ervoir or tank for the oil, and E the pipe or is then made for the gradual continual introconduit leading from near the top of said duction of asmall quantity of water or other tank or reservoir down through its bottom to equivalent fluid, and the lubricant, being 3 a point adjacent to the part to be lubricated. lighter than the water, will rise thereon and IVhile the engineillustrated embodies some fiow out through the pipe E to the point of other improvements, (not, however, fully discharge, where it drops onto the bearing or shown,) which are the subject-matter of anpart to be lubricated. I utilize the exhaustother application, Serial No. 314,968, for Letsteam to produce the water. The space in- 3 5 ters Patent, neither the casing A, cylinder B, side the casing A is filled with the exhaust- 8 5 nor wrist-pin C is peculiar to my present insteam in the operation of theengine shown,

vention further than that the casing incloses and a small, quantity of this steam continua space into which the exhaust-steam enters, ally finds its way up the pipe E into the inand from which a small portion of exhaustterior of the tank or reservoir D, where it 4 steam is adapted to pass up through the small condenses (principally on the under surface pipe E, as will-be presently explained. of the upper wall thereof) and produces the The reservoir D is shown as being formed water, which, being heavier than the oil, goes by connecting the side walls of two cylinders to the bottom of the reservoir, raising the oil' in the upper half of the engine by a partition and causing it to flow into the pipe E and 45 b, which closes what would otherwise be an through it to the point to be lubricated, as

open space between them and forms the botbefore described. tom to the reservoir. In the top of said res- By a proper adjustment of the parts, parervoir, just above the upper end of the pipe, ticularly of the size of the tube E, exactly the a hand-hole is formed, which is closed by a quantity of lubricant can be caused to be dis 5 screw-plug d, through which handhole the charged onto the bearing that is required for the purpose, and this quantity will vary somewhat under the conditions described as the speed of the engine varies, for when the engine is running at a higher speed it of course exhausts more steam, and the quantity of eX- haust-steam in the interior of the casing is therefore greater, and a somewhat greater quantity will find its way up to the tube E than when the pressure is less. This device thus provides fora continual automatic lubrication of the wrist-pin or other part at all times, which is especially desirable in structures of the-character shown, where the point to be lubricated is inclosed by a casing, and therefore difficult of access.

Having thus fully described my said invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination, with an engine, of a reservoir or tank formed integral therewith, an 'openspaee into which exhauststeam enters, and a small pipe or tube leading from said open space to the interior of said tank or reservoir, whereby when said tank or reservoir is filled with a lubricant it may be gradually discharged onto the part to be lubricated, substantially as set forth.

2. The combination, with an engine, of a tank or reservoir for a lubricant, forming a part of the structure of the engine and an ranged above its wrist-pin, a small pipe leading from a point vertically above the path of said wrist-pin through the bottom of said reservoir into its interior, and means whereby a fiuid heavier than the lubricant may be introduced into and withdrawn from said res- Ol'VOil.

3. The combination, with a multicylinder engine, of a tank or reservoir for a lubricant arranged between two of the cylinders, the walls of which are partially formed by the sides of the said cylinders, said reservoir being arranged above the wrist-pin of the engine, a small pipe leading from the space above said wrist-pin through the bottom of said reservoir to its interior, and a casing surrounding said space into which the exhaust steam is discharged, whereby in operation said steam will ascend said pipe and displace the lubricant in said reservoir, causing it to flow down said pipe and drop onto said wristpin or the bearings thereto, said several parts being arranged and operating substantially as shown and described, and for the purposes specified.

l. The combination, with an engine, of a lubricator the reservoir whereof is formed integrally with the structure of the engine and is located above the point to be lubricated, and a discharge-pipe leading from said reservoir, the discharging orifice of which is above the point to be lubricated, substantially as shown and described In witness whereof I have hereunto set my hand and seal, at Indianapolis, Indiana, this 25th day of November, A. D. 1889.

GEORGE O. PYLE. L. s]

Witnesses:

CHESTER BRADFORD, JAMES WALSH. 

